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Effect of Preparation Method on Photocatalytic Activity of Titanium-Bearing Blast Furnace Slag

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Abstract:

The paper investigates the feasibility to reduce Cr (VI) from the aqueous solution by sulfate-modified titanium-bearing blast furnace slag (STBBFS) prepared with the different preparation method. The different photocatalysts were examined by X-ray diffraction (XRD), UV-vis diffuse reflectance spectra and scanning electronic microscopy (SEM). The photocatalytic activities of the different catalysts were evaluated by the photocatalytic reduction of Cr (VI) under UV-vis light irradiation. For the photocatalytic reduction of Cr (VI), the photocatalytic activities of STBBFS catalysts were found to be strongly dependent of absorbance in UV-visible region, adsorption capacity and surface acidity, and STBBFS prepared by dry-process showed a higher photocatalytic activity compared to that prepared by hydro-chemistry method.

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Info:

Periodical:

Advanced Materials Research (Volumes 690-693)

Pages:

1081-1085

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.690-693.1081

Citation:

Cite this paper

Online since:

May 2013

Authors:

Xue Fei Lei, Xiang Xin Xue, He Yang

Keywords:

Cr(VI), Perovskite, Photocatalytic Activity, Preparation Method, Sulfate-Modified Titanium-Bearing Blast Furnace Slag

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